GATE ME 2014 Set 1 — Question 58
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Thermodynamics → Laws & Properties → Carnot Cycle & Entropy
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Question
A reversible heat engine receives of heat from a reservoir at and a certain amount of heat from a reservoir at . It rejects of heat to a reservoir at . The net work output (in kJ) of the cycle is
Correct answer
(C) 1.4
Solution
For a reversible heat engine cycle, the Clausius equality holds:Let:
at (Heat received)
at (Heat received)
at (Heat rejected)Applying the equality:The net work output is the algebraic sum of heat transfers:Thus, the net work output is . Correct option is (C).
at (Heat received)
at (Heat received)
at (Heat rejected)Applying the equality:The net work output is the algebraic sum of heat transfers:Thus, the net work output is . Correct option is (C).
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